Railroad-tie mold.



J. C. GRAY.

RAILROAD TIE MOLD. APPLICATION FILED mAvzl, 1917.

Patented Nov. 26, 1918.

J OHN' C. GRAY, OF WASKISH, MINNESOTA.

RAILROAD-TIE MOLD.

Specification of Letters Patent.

Patented Nov. 26, 1918.

Application filed May 21, 1917. Serial No. 169,954.

To all whom it may comm.-

Be it known that I, JOHN OARsoN GRAY,

a citizen of the United States, residing at,

Waskish, in the county of Beltrami, State of Minnesota, have inventedcertain new and useful Improvements in Railroad-Tie Molds and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates to new and useful improvements in concrete molds,and pertains more particularly to a mold especially adapted for moldingcomposition railway ties.

The main object of the invention is to provide a device of thischaracter which after the tie has been molded may be collapsible for thepurpose of removing the molded tie.

A further object of the invention is to provide means carried by themold by which the rail fastening means carried by the tie may besupported within the mold during the molding operation.

Referring to the drawings,

Figure 1, is a top plan view of the mold,

Fig. 2, is a longitudinal sectional view on the line 22 of Fig. 1,

Fig. 3, is a transverse sectional view on the line 33 of Fig. 1,

Fig. 4, is a detail view,

Fig. 5, is a detail view; and,

Fig. 6, is a detail view of the side and end securing means.

Referring more particularly to the drawings, the device comprises abottom member 10, two side members 11, and two end members 12. Thebottom member 10 is provided near its side edges with rectangularperforations 13, and as shown in Fig. 1 the side members 11 are providedon their bottom edge with depending integral lugs 14 which are adaptedto be received within the rectangular perforation 13 of the bottommember 10. This bottom member 10 is provided near each of its end edgeswith rectangular perforations 15, and the end members 12 are provided ontheir bottom edges with integral depending lugs 16 which are ada ted tobe received in the rectangular per orations 15 of the bottom member.

As shown in Fig. 6, the side members are provided at their upper cornerswith eyes 17 which project therefrom in the same plane as the sidemembers, and secured to the upper corners of each of the end members andextending therefrom at right angles thereto are eye members 19 whichwhen the side and end members are placed on the bottom member 10' areadapted to register with the eye members 17 of the side in such a mannerthat a bolt or rod 20 may be passed therethrough tosecure the said sideand end members 11 and 12 in vertical relation with respect to thebottom member 10.

Suitably positioned and secured by screws or the like within the moldnear each end on its upper face is a block 21 provided with a pair ofrecesses 22 and 23, for retaining rail clamps or the like in placewithin the mold during the molding operation and in such a manner thatsaid rail clamps will be embedded in the complete molded article. Aplate or the like 24 is provided on one of its edges with a circular cutout portion 25, and the upper face of the block 21 is recessed as at 26adjacent the opening 22 for the reception of said plate, the curved faceof which is adapted to engage the rail clamp, and the lugs 27 onopposite sides of the curved face 25 are adapted to overlie the ends ofthe recesses 22 to prevent any of the concrete or material from whichthe article is molded from entering the said recess 22. The blocks 21are permanent parts of the mold and the sockets 22 and 23 therein willsupport rail clamps for engaging the inner and outer sides of the baseflange of a rail, and these clamps are held vertically in the block 21when engaged in the sockets therein.

In use, the mold is set up by inserting the integrally depending lugs 14of the side members in the recesses 13 of the bottom member, thedepending lugs 16 of the end members being inserted in the rectangularperforation 15.

- VVit-h the parts in this position the eye members 17 and 19 arepositioned so that their openings register with each other and the boltor rods 20 are inserted therethrough. The blocks 21 are then placed inthe mold with the rail clamps in position therein. The mold is nowfilled with plastic material and when said plastic material has set, byremoving the bolts or rods 20 the mold is readily knocked down to permitof the removal of the molded article.

Having thus described the invention, what is claimed, is:

A mold of the character described comprising an elongated trough-likebody having detachable sides and ends, means mounted exteriorly on thesides and ends and adapted to overlap and register with each other,fastening bolts i'eniovztbl engaged in said means, blocks fixed withinthe body on its bottom and having sockets in their upper faces andextended vertically only partially through the same, the bottom beingformed with slots, and lugs formed from the lower edges of said sidesand ends and engaged in 10 the slots.

In testimony whereof, I aifix my signature in the presence of twowitnesses.

JOHN C. GRAY. Witnesses Q J. S. LARSON,- lVIARTIN ANDERSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner 0t Patents, Washington, D. G.

